How to learn harmony singing? Best method is, of course, joining a local choir or joining a school choir, a school orchestra. So, you get relative pitch and another method is to get a friend that plays an instrument, to play a melody and you pitch a third and then learn to pitch a fifth, then learn to pitch a six, learn octaves and lots of practice. Another method is the so-fa method which is brilliant, to get the brain to have relative pitch and that's do-re-mi-fa-so-la-ti tone and I am going to demonstrate now. Really listen to the pitch of each notes I play. Okay, so a recap, so a friend plays the melody and you're practicing your third and fifth, try the so-fa method which is the do-re-mi-fa-so-la-ti tone and of course, the best method of all, try join a local choir and that's how to learn harmony singing. .